This report provides a brief statistical overview of where and when citizen scientists have been participating in Mosquito Alert during 2021. It is not intended to show estimates of mosquito populations or risk levels, only participation itself. (Thus, for example, the reporting figures shown here do not distinguish between validated reports and unvalidated reports.) Note that some of the figures are interactive: more information can be obtained from them by hovering the cursor over elements, zooming in and out etc.

Registrations

One way of measuring participation is to look at the number of times people have “registered” with Mosquito Alert, defined as transmitting their consent to participate in the project. (Once a person installs the app, they must provide informed consent before they are able to use it, and this consent is transmitted to the Mosquito Alert server.) The number of registrations is not an exact measure of the number of participants, since some people may end up registering multiple times. This happens if they install the app, consent, then delete it and install and consent again. During 2021 there were a total of 107936. The following charts show the time series of daily and cumulative registrations to date.

Reports by Country

During 2021 Mosquito Alert has received a total of 51560 reports from 18680 participants in 152 countries. Of these, 31129 are reports of adult mosquitoes, 4547 are reports of mosquito breeding sites, and 15884 are reports of mosquito bites.

The following chart shows the number of reports of each type by country, with bite reports in red, adult mosquito reports in yellow, and breeding site reports in blue. Only countries from which at least 50 reports in total have been sent are displayed.

Not displayed in this plot are 348 countries from which at least 1 but less than 50 reports have been received. These countries are as follows:

Andorra, Angola, Argentina, Armenia, Aruba, Australia, Bangladesh, Belarus, Benin, Bolivia, Bosnia and Herzegovina, Botswana, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Chad, Chile, China, Costa Rica, Curaçao, Cyprus, Democratic Republic of the Congo, Denmark, Djibouti, Dominican Republic, Ecuador, El Salvador, Equatorial Guinea, Estonia, Ethiopia, Fiji, Finland, Gabon, Georgia, Ghana, Greenland, Guatemala, Guernsey, Guinea, Guyana, Haiti, Honduras, Iraq, Ireland, Israel, Ivory Coast, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kosovo, Kyrgyzstan, Laos, Latvia, Lebanon, Liberia, Libya, Lithuania, Luxembourg, Macedonia, Madagascar, Malaysia, Maldives, Mali, Malta, Mauritania, Mauritius, Moldova, Mongolia, Montenegro, Mozambique, Myanmar, Namibia, Nepal, Nicaragua, Nigeria, Northern Cyprus, Norway, Oman, Palestine, Panama, Paraguay, Philippines, Puerto Rico, Senegal, Sierra Leone, Singapore, Slovakia, Somalia, Somaliland, South Sudan, Sri Lanka, Sudan, Sweden, Switzerland, Syria, Taiwan, Tanzania, Togo, Trinidad and Tobago, Tunisia, Uganda, United Arab Emirates, United Kingdom, Uruguay, Uzbekistan, Vatican, Venezuela, Vietnam, Yemen, Zambia.

Time Series Area Plot for High-Participation Countries

Focusing just on the 10 countries from which the most reports were sent during 2021, the following area plot shows the total number of reports during that year sent from the 10 countries with the highest number of reports (in 2021).

Time Series Stream Plot for High-Participation Countries

Focusing again on the 10 countries from which the most reports were sent during 2021, the following stream plot provides another way of visualizing the total number of reports over time that year sent from the 10 countries with the highest number of reports.

Operating System Usage

We do not track the operating system from which participants first register, but we do track the operating system from which they send reports. Of the total of 51560 that Mosquito Alert received in 2021 35981 (70%) were sent from Android devices and 15579 (30%) were sent from iOS devices. The following plot shows the percentage sent from Android devices for each country from which at least 100 reports were sent in 2021.

The following plots shows the time series of reports sent from iOS and Android devices during 2021. Daily reports are shown first, followed by cumulative totals.